RE: [PWE3] PWE3 new WG items?

[Rahul Aggarwal <rahul at juniper.net>]

Hi Ben,

[snip]

>
> Therefore IMO the signalling of PW QoS has one of two solutions:
>
> 1) Add PW signalling to CR-LDP (although this would be the easiest solution,
CR-LDP has been deprecated).

>
> 2) Add PW signalling to RSVP-TE.
>

For the purpose of PW QoS, this is reasonable. Note that the
MPLS WG has 2 defined mechanisms for transport LSP setup:
  - LDP
  - RSVP-TE

Of these RSVP-TE is used primarily for QoS/TE and Fast Reroute. LDP on the
other hand is deemed easier to configure and manage when TE is not a
requirement.

There is no reason why PWE setup cannot follow a similar model:
  - LDP for PW signaling without QoS
  - RSVP-TE for PW signaling with QoS

rahul


> Neither of which require PW specific QoS signalling mechanism because
> adding PW specific QoS signalling mechanisms (to LDP, CR-LDP or RSVP-TE)
> is not necessary IMO and would only lead to increased complexity/opex.
>
>
> Ben
>
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